Hi all! I am trying to fit a 2-level hierarchical lme(). I can extract ranef() and coef() without problems for levels=1:2. However, when it comes to resid() at level=2, the resulting list has some unnamed entries (label="NA"). I checked with my data (NAs have been omitted) and I found out that it gives 2-3 residuals less in each subgroup. Any ideas what might be wrong? Thank you! Irene
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